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# Copyright 2013-2018 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack import *
class Opengl(Package):
"""Placeholder for external OpenGL libraries from hardware vendors"""
homepage = "https://www.opengl.org/"
provides('gl@:4.5', when='@4.5:')
provides('gl@:4.4', when='@4.4:')
provides('gl@:4.3', when='@4.3:')
provides('gl@:4.2', when='@4.2:')
provides('gl@:4.1', when='@4.1:')
provides('gl@:3.3', when='@3.3:')
# Override the fetcher method to throw a useful error message;
# fixes GitHub issue (#7061) in which this package threw a
# generic, uninformative error during the `fetch` step,
@property
def fetcher(self):
msg = """This package is intended to be a placeholder for
system-provided OpenGL libraries from hardware vendors. Please
download and install OpenGL drivers/libraries for your graphics
hardware separately, and then set that up as an external package.
An example of a working packages.yaml:
packages:
opengl:
paths:
opengl@4.5.0: /opt/opengl
buildable: False
In that case, /opt/opengl/ should contain these two folders:
include/GL/ (opengl headers, including "gl.h")
lib (opengl libraries, including "libGL.so")
On Apple Darwin (e.g., OS X, macOS) systems, this package is
normally installed as part of the XCode Command Line Tools in
/usr/X11R6, so a working packages.yaml would be
packages:
opengl:
paths:
opengl@4.1: /usr/X11R6
buildable: False
In that case, /usr/X11R6 should contain
include/GL/ (OpenGL headers, including "gl.h")
lib (OpenGL libraries, including "libGL.dylib")
On OS X/macOS, note that the version of OpenGL provided
depends on your hardware. Look at
https://support.apple.com/en-us/HT202823 to see what version
of OpenGL your Mac uses."""
raise InstallError(msg)
@property
def libs(self):
for dir in ['lib64', 'lib']:
libs = find_libraries('libGL', join_path(self.prefix, dir),
shared=True, recursive=False)
if libs:
return libs
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